Method and apparatus for increasing the strength of phase-based watermarking of an audio signal
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0034]Even if not explicitly described, the following embodiments may be employed in any combination or sub-combination.
The Analysis-Synthesis Framework
[0035]In FIG. 1, the analysis-synthesis framework for audio watermark processing is depicted. It is common practice in audio processing to apply a short-time Fourier transform (STFT) for obtaining a time-frequency representation of the signal, so as to mimic the behaviour of the human ear.
[0036]The STFT consists in (i) segmenting an input signal x in frames xn having a length of B samples using a sliding window with a hop-size of R samples and, following multiplication by an analysis window wA in a multiplier step or stage 11, (ii) applying a DFT in a transformation step or stage 12 to each frame {tilde over (x)}n. This analysis phase results in a collection of DFT-transformed windowed frames {tilde over (X)}n which are fed to the subsequent watermarking processing 13 described in FIG. 9 in more detail, resulting in watermarked time ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com